The stuff I’ll sit through for a little primo surfing footage, an Aussie accent or three and Temuera Morrison going bloody psycho killer on everybody.

“Sons of Summer” is a sentimental “surfie” bros tribute trip tale that crashes up against a drug heist that goes deathly wrong. The movie never lets those two threads mesh, as the surfies continue their VW Microbus camping trek to a great surfing spot on Australia’s Gold Coast (Austinville) despite the body count they learn is piling up behind them.

It’s an out-of-its-time sequel to an Australian B-movie surf thriller, “Summer City” notable only for being a pre-stardom vehicle for a very young Mel Gibson. That was about the fathers of the bros of this film getting mixed-up in something that got one of them killed. Three of them survived, and Mel’s role was mercifully recast.

But not because he’s been “canceled” (he hasn’t). It’s because that first film came out in 1977, and they’re trying to pass off this “tribute trip” as happening “30 years later.” No, changing the dates and recasting “most” of those guys (co-writer Phillip Avalon returns as Robbie) is fooling no one.

Those Aussies. Too many Fosters and they’re all “flamin’ galahs” at math. And it’s no wonder the “fathers” are quickly shuffled into the background.

Sean (Joe Davidson) is the blond Adonis son of Boo, the surfer murdered all those years ago. He and his mates, the sons of the survivors of that long-ago quartet, decide to head down the coast to Austinville for a tribute to Sean’s dad.

Jack (Matao Boosie) isn’t that close to Sean, but Kane (Matthew McDonald) and Clay (Jonathan Weir) take no convincing.

It’s just that Sean’s got his own “past” that’s catching up to him, with Rick (Alex Fleri) and Pete (Steve Nation) calling in favors for that “last one, for me. Promise!”

Sean doesn’t realize that he’s about to grand-theft-auto the wrong Mustang, belonging to the wrong hood (Christopher Pate), and that those drugs in the trunk will not help them “get ahead.” Not with ferocious Frank (Morrison, the Once and Always Boba Fett) on their trail.

The project’s clumsy grasp of math and re-casting means that not much effort is put into tying the old guys and their long-ago misadventures with today. That wrong-foots the picture from the start, as getting us up to speed as to what this is all about — the connections, their shared past, the tragedy that binds them — takes forever and is botched in the process.

Sean’s long-suffering girlfriend (Isabel Lucas) doesn’t flee the moment he breaks his promise about leaving “that life” behind, and only considers it when Frank the thug busts into their house.

And if learning of that first “like a father to me” murder isn’t enough to derail their plans, their surf addiction must be a longer stronger and less moral than we’ve been led to believe.

Davidson has a hint of Chris Hemsworth about him — good lucks and hunky screen presence. But this isn’t a film to get a guy noticed outside of Oz.

Veteran B-movie director Clive Fleury (Burt Reynolds’ “Big City Blues”) finds himself clumsily alternating between graphic violence and goofy surfing mating rituals, 30 year-old “boy bonding” and the like. Logic aside, the picture is off-key pretty much from the start.

He’d have spared himself and any potential viewers that whiplash by taking the awful reviews of 1977’a “Summer City” to heart. This didn’t deserve a sequel, mate. You’re just recycling a plot that was crap the first time around.

Rating: R, violence and profanity

Cast: Joe Davison, Isabel Lucas, Jonathan Weir, Alex Fleri, Matao Boosie, Matthew McDonald, Christopher Pate, and Temuera Morrison.

Credits: Directed by Clive Fleury, scripted by Phillip Avalon and Greg Clayton. A Lionsgate release.

Running time: 1:31